<!DOCTYPE html>
<html>
<head>
  <style>
  textarea { height:25px; }
  </style>
  <script src="http://code.jquery.com/jquery-latest.js"></script>
</head>
<body>
  <form>
    <input type="button" value="Input Button">
    <span style="background:yellow;border:3px red solid;"><input type="checkbox"></span>

    <span style="background:yellow;border:3px red solid;"><input type="checkbox"></span>
    <input type="file">
    <input type="hidden">

    <input type="image">
    <input type="password">
    <input type="radio">

    <input type="reset">
    <input type="submit">
    <input type="text">

    <select><option>Option</option></select>
    <textarea></textarea>
    <button>Button</button>
  </form>

  <div style="color:red;">For this type jQuery found 2.</div>
<script>

    var input = $("form input:checkbox").wrap('<span></span>').parent().css({background:"yellow", border:"3px red solid"});
    $("div").text("For this type jQuery found " + input.length + ".")
            .css("color", "red");
    $("form").submit(function () { return false; }); // so it won't submit

</script>

</body>
</html>